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- Page 1 PSU-B/A-13,8V/L-5A/2/EL-TR-65Ah/MC AWZ 501 v.1.1 Buffer, linear power supply unit Edition: 1st from the 03.03.2008 Supercedes edition: ----------------------- 15062009...
- Page 2 1. Technical description. 1.1. General description. The buffer power supply unit (PSU) is used for uninterrupted supply of devices requiring stabilised voltage of 12V/DC. A linear stabilising circuit used in the device supplies voltage of a lower noise level and a shorter time of response for a noise than if a switching stabiliser is used.
- Page 3 2. Installation. 2.1 Requirements. The buffer PSU shall be mounted by the qualified installer having appropriate (required and necessary for a given country) permissions and qualifications for connecting (operating) 230V/AC installations and low-voltage installations. Before installation is started, the balance of the PSU load shall be performed. During the normal operation, the sum of currents collected by receivers and the battery charging current shall not exceed 5.6 A.
- Page 4 11. By means of STOP button [3] activate or deactivate the dynamic battery test (Tab.2). Test deactivation triggers also deactivation of signalling of a battery failure at the AW output, but the circuit protecting the battery from the complete discharge is not isolated. 12.
- Page 5 Available menu items. FAL PSU failure memory (20 last events) measurement of the battery discharging current [A] measurement of the battery charging current [A] measurement of current collected from OUT2 output [A] measurement of current collected from OUT1 output [A] measurement of voltage at the output of the PSU bridge-rectifier [V] Uo2 measurement of voltage at OUT2 output [V] Uo1 measurement of voltage at OUT1 output [V]...
- Page 6 Activated overvoltage Disconnect the PSU, contact Stabiliser fault protection, open stabiliser with the service circuit Too high supply voltage AC >250V Check 230V power voltage No power voltage or too Check the transformer low power voltage power fuse Switching on AC supply PSU restart voltage or activation of the PSU by START button...
- Page 7 4. Battery operation 4.1 Starting the PSU from the battery. Starting the PSU from the battery: the START button at the device board shall be pressed and held for 5s • Stopping the PSU from the battery: the STOP button at the device board shall be pressed and held for 2s •...
- Page 8 4.5 Battery operation – standby period. The current collected from the PSU during the battery operation shall be limited in order to retain the standby period. Data for 65Ah/12V SLA battery: - for class 1 (8h) Id current= 5,0A (where Id=5A, Td=10h) - for class 2 (15h) Id current=3,4A QAKU = 1.25*[(Id + Iz)*Td] –...
- Page 9 5. PSU elements. 5.1 View of the PSU. Fig.3 View of the PSU.
- Page 10 5.2 Elements of the PSU. Element No. Description [Fig. 3] Acoustic indicator ZB jumper for disconnection of acoustic signalling STOP button for disconnection of the PSU, activation/deactivation of the battery test START button for starting from the battery AC Z1, Z2: jumpers for configuration of delay time of signalling of BS output AKU Z3, Z4: jumpers for configuration of UVP battery protection OUTPUTS of the battery: +BAT=red, - BAT=black ~AC~ AC supply connector...
- Page 11 110% ÷ 150% @65ºC÷25ºC of supply power - limitation Overload protection OLP of current by a PTC return fuse, manual restart (isolation of DC output circuit) 6,3A- limitation of current, T 6,3A fuse (requires replace of Short-circuit protection of the battery circuit SCP the fuse-element) U>16,5V isolation of output voltage, automatically Overvoltage protection OVP...
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Page 12: Warranty
EU. The power supply unit is adapted for cooperation with the sealed lead-acid battery (SLA). After the operation period it must not be thrown but recycled according to the applicable law. Pulsar K.Bogusz Sp.j. Siedlec 150, 32-744 Łapczyca, Poland Tel.
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